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LB Health Check

Users can create LB health checks through the Samsung Cloud Platform Console and use them for LB server groups.

Create LB health check

Reference
You can create up to 500 LB health checks per account.

To create an LB health check, follow these steps.

  1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
  2. On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
  3. On the LB Health Check List page, click the Create LB Health Check button. You will be directed to the Create LB Health Check page.
  4. On the LB Health Check Creation page, enter the information required to create the service and select detailed options.
    • In the Service Information Input area, enter or select the required information.
      Category
      Required
      Detailed description
      LB health check nameRequiredLB health check resource name
      • Enter using English uppercase and lowercase letters, numbers, and special characters (-_) with a length of 3 to 63 characters
      • LB health check name must be unique within the Account
      VPC nameRequiredSelect the VPC to create the LB health check
      • Select the VPC where the LB server group that will use the LB health check is created
      Service Subnet nameRequiredSelect the VPC Subnet to create the LB health check
      • Select the Subnet where the LB server group that will use the LB health check is created
      Health check method > ProtocolRequiredHealth Check Protocol
      • Select the protocol to use for member health checks among TCP, HTTP
      Health check method > Health check portRequiredHealth check port
      • Enter a value between 1 and 65,534 to use as the member health check port
      Health check method > intervalRequiredHealth check interval
      • Default is 5 seconds, input allowed between 1 and 180 seconds
      Health check method > waiting timeRequiredHealth check response wait time
      • Default 5 seconds, can be set between 1 and 180 seconds
      • Cannot be set to a value larger than the interval
      Health check method > detection countRequiredNumber of times to evaluate health check status
      • Default value 3 times, input allowed between 1 and 10
      Health check method > HTTP methodRequiredSet HTTP request method (HTTP protocol usage setting)
      • Select GET or POST
      Health check method > URL monitorRequiredEnter health check URL path (set when using HTTP protocol)
      • Enter using English letters, numbers, and special characters (/.-_?&=) within 50 characters
      Health check method > Response codeRequiredEnter the HTTP response codes to receive from the server (HTTP protocol when used)
      • Enter response codes in the 200 ~ 500 range
      Health check method > request stringRequiredHealth check request string input (HTTP protocol POST method setting)
      • Enter the content to include in the Request Body using English letters, numbers, and special characters (/.-_?&=) within 255 bytes
      Table. LB health check service information input items
    • In the Additional Information Input area, enter or select the required information.
      Category
      Required status
      Detailed description
      descriptionSelectEnter resource description
      tagSelectAdd tags
      • Up to 50 tags can be added per resource
      Table. LB server group additional information input fields
  5. Summary Check the service information and estimated charges created in the panel, and click the Create button.
    • When creation is complete, check the created resources on the LB Health Check List page.
guide

Add the following rule to the Security Group of the server added as a member for member health checks in the Load Balancer.

  • (Direction) Inbound rule, (Target address) Load Balancer’s health check IP, (Protocol) health check protocol, (Allowed port) health check port
  • It is recommended to set the health check port the same as the member port.
  • If the health check port and the member port differ, the health check is performed using the member port.
guide

Configure the LB health check to a value that members added to the LB server group can respond to.

  • Since the Load Balancer determines member status based on health check responses, the LB health check results may differ from the actual service status.

View detailed LB health check information

In the LB Health Check menu, you can view and edit the resource list and detailed information. The LB Health Check Details page consists of Details, Connected Resources, Tags, Activity Log tabs.

To view detailed LB health check information, follow these steps.

  1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.

  2. On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.

    • You can modify the column visibility by clicking the Settings button at the top right of the table.
      Category
      Display option
      Detailed description
      LB health check nameBasicLB health check resource name
      Service Subnet IDBasicVPC Subnet name where the LB health check was created
      Number of LB server groupsBasicNumber of LB server groups using LB health check
      typeBasicLB Health Check Type
      ProtocolBasicLB health check protocol
      Creation date and timeBasicLB health check creation timestamp
      statusBasicLB health check resource status
      Table. LB health check list items
  3. On the LB Health Check List page, click the resource to view detailed information. You will be taken to the LB Health Check Details page.

    • LB Health Check Details At the top of the page, status information and descriptions of additional features are displayed.
      CategoryDetailed description
      statusLB health check resource status
      • Active: The service is active and functioning normally
      • Deleting: Processing service termination request
      • Creating: Processing service creation request
      • Error: Unable to determine current status due to an internal error
        • If this status persists, please contact the Support Center
      • Editing: Processing service modification request
      Delete LB health checkDelete LB health check resource
      Table. LB health check status information and additional feature items

Detailed Information

Details tab allows you to view the resource’s detailed information from the LB health check list, and edit the information if needed.

CategoryDetailed description
ServiceService name
Resource TypeResource Type
SRNUnique resource ID in Samsung Cloud Platform
Resource nameResource Name
Resource IDUnique resource ID in the service
constructorUser requesting service creation
Creation date and timeService creation date and time
EditorService modification request user
Modification date and timeService modification date and time
LB health check nameLB health check name
typeLB health check type
VPC nameVPC to use for LB health check
  • Click the resource name to go to the detail page
Service Subnet nameVPC Subnet for LB health checks
  • Click the resource name to go to the detail page
Health check methodLB health check method configuration information
  • Edit icon can be clicked to modify
descriptionAdditional information about LB health check
  • You can edit by clicking the Edit icon
Table. LB health check detailed information tab items

Connected resource

In the Connected Resources tab, you can view detailed information about the LB server groups associated with the LB Health Check.

CategoryDetailed description
LB server group nameLB server group resource name
  • When you click the resource name, navigate to the LB server group detail page
ProtocolLB health check protocol
Load Balancer nameLoad Balancer resource name linked to the LB server group
Number of membersNumber of members added to the LB server group
Creation date and timeLB server group creation timestamp
statusLB server group resource status
  • Active: The service is active and functioning normally
  • Deleting: Processing service termination request
  • Creating: Processing service creation request
  • Error: Unable to determine current status due to an internal error
    • If this status persists, please contact through the Support Center
  • Editing: Processing service modification request
Table. LB health check connected resource list items

tag

LB health check list page lets you view the tag information of the selected resource and add, modify, or delete it.

CategoryDetailed description
Tag listTag list
  • You can view the Key and Value information of the tag
  • Up to 50 tags can be added per resource
  • When entering a tag, you can search and select from the list of previously created Keys and Values
Table. LB health check tag tab items

Job History

Work History tab allows you to view the operation history of the selected resource.

CategoryDetailed description
Work historyTask execution details
Operation Date/TimeExecution date and time
Resource TypeResource Type
Resource NameLB health check name
Work resultTask execution result (success/failure)
Operator InformationUser information of the performed operation
Table. LB health check job history list items

Modify LB health check method

LB Health Check Details page allows you to modify the health check method.

To modify the LB health check method, follow these steps.

  1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
  2. On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
  3. LB Health Check List page, click the resource you want to edit details for. You will be taken to the LB Health Check Details page.
  4. On the LB Health Check Details page, click the Edit icon of the Health Check Method. You will be taken to the Edit Health Check Method popup.
  5. Modify health check method After editing the required information in the popup window, click the Confirm button.

Cancel LB health check

You can cancel the LB health check service you are not using.

Caution
  • default type LB health check resource cannot be deleted.
  • LB health check resources used by the LB server group cannot be deleted.

To disable the LB health check, follow these steps.

  1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
  2. On the Service Home page, click the LB Health Check menu. You will be taken to the LB Health Check List page.
  3. Click the resource to terminate from the LB health check list. You will be taken to the LB health check details page.
  4. On the LB Health Check Details page, click the Delete LB Health Check button.
  5. Once the termination is complete, check the resource termination status in the LB health check list.
LB Server Groups
Release Note